Topic: CH-7: ENVIRONMENT AND SUSTAINABLE DEVELOPMENT

A reduction of approximately what percentage in the ozone layer was detected from 1979 to 1990?

India is one of the _____ most industrialised nations of the world.

India is privileged to have about how many species of plants which have medicinal properties?

The pollution control boards monitor the quality of water in how many rivers?

Sustainable development is described as:

Mini-hydel plants have which advantage over large hydroelectric projects?

Environment is defined as:

India accounts for nearly what percentage of the world’s total iron-ore reserves?

The concept of sustainable development was emphasised by which organisation?

About how many medicinal plant species in India are in regular use?